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-   -   vacuum wastegate question?? (https://www.dieselbombers.com/chevy-gmc-6-2l-6-5l/83010-vacuum-wastegate-question.html)

cthomas7192 09-19-2011 09:07 AM

Yea that was my first choice but ive heard good things about kojo so thats why i was interested

Oksky 10-07-2011 01:03 PM

I'm a real newbie to the diesel world. Bought a 98 K2500 w/6.5 to pull my 8000# boat. First thing that happened was the vacuum pump went within the first month. Just installed the TM from Heath. Great product. I thought of making one myself but my time is worth more than the few bucks it cost for the TM. I got the replacement belt so I could remove the vacuum pump. I don't need it to sieze when I'm in the middle of nowhere. The more you can elliminate the less things to go wrong.

scottrods 10-16-2011 12:02 PM

I put the heath boost control and the max e tork on my dually and it is probably the best money I have ever spent in upgrades,the truck pulls my 48' enclosed gooseneck with ease and it made the biggest difference in the hills,it hardly ever downshifts anymore or loses speed,if the cruise is on it usually picks up a mile or two per hour on the gps.And I also get a few miles per gallon better.

wpg6.5 10-16-2011 03:28 PM

the kojo tune is from walking j designs. he has been changing his site alot in the past few days from not showing the tune seperate and only showing it with the a team turbo and now not showing at all. but id give him a call as this tune is cheapest and from what i understand is more versatile in choosing what you want may it be towing or just more power for fun. also if you run a a team turbo you dont need a waste gate. i have the the turbo master from heath and the performance tune and they are good but since the kojo is about a hundred less then heath and the att is about 800 a package of like 1100 for both i wish i had spent the extra and got the tune and turbo instead of tune and controller. maybe an option you can fund and would like to explore. thats what i woulda done in hindsight.

dcpowell17 10-16-2011 07:05 PM

My waste gate is slammed shut.

cthomas7192 10-17-2011 10:12 AM

yea i really want the a team turbo but cant afford it at the moment so im going to get the turbo master for the time being and get the att down the road

hosmanr1 02-18-2012 09:57 PM

What symptoms will a bad waste gate give you? I have a 97 3500 that first thing in the morning it smokes bad, runs rough and no pedal response at all for the first couple minutes. I checked glow pludgs and they are all ok.

ssgstank 02-19-2012 11:21 AM

Check your crank case ventilation, the tuna can looking thing that is connecting you valve cover and intake if that is gummed up it will produce similar symptoms. Shoot some carb cleaner through it or just replace it.

great white 02-20-2012 05:47 AM


Originally Posted by hosmanr1 (Post 860917)
What symptoms will a bad waste gate give you? I have a 97 3500 that first thing in the morning it smokes bad, runs rough and no pedal response at all for the first couple minutes. I checked glow pludgs and they are all ok.

No turbo response (ie: bad wastegate) will give you rolling black clouds on acceleration or climbing any kind of hill. Towing anything will also smoke.

It will also drive your egt's through the roof.

Possible causes (in no particular order other than #1):

1. Wastegate solenoid
2. Wastegate actuator
3. Vacuum pump
4. leaking vacuum lines
5. Seized wastegate
6. intake tract leak
6. turbo failure

Your starting issues sound like something else....

stuntmanmike 02-24-2012 07:41 PM


Originally Posted by ebarresi5894 (Post 799590)
no you dont, what i did was took the bottom half off the vaccum pump so it runs as an idler, and wiring the wastegate shut is a good way to grenade your motor. it over boosts the motor beyond belief. i wouldnt do it!!:scare2:

When i bought my truck my waste gate was wired shut already i havent changed it because every thing is working fine i live by if it's not broke don't fix it but im still not building more than 7 lbs of boost?


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